[Debo22]

its not some famous trick, its just gets you out of a jam, some cheap valves even new need some teflon tape to seal because the mating edges for the gasket are uneven and seep water...in a bind i have used teflon tape to pack a bonnet to stop it from pissing water..till valve can be replaced..

I’ve had a gate valve pissing out the packing nut and no matter how much I tightened it there was no stopping the leak. I unscrewed the nut, wrapped the stem in Teflon tape, and tightened the nut back down. Leak stopped and replaced it with a ball valve a couple days later